參數(shù)資料
型號(hào): LTC1068-50IG
廠商: Linear Technology
文件頁數(shù): 29/30頁
文件大?。?/td> 0K
描述: IC FILTR BUILDNG BLK QUAD 28SSOP
標(biāo)準(zhǔn)包裝: 47
濾波器類型: 通用開關(guān)電容器
頻率 - 截止或中心: 50kHz
濾波器數(shù): 4
濾波器階數(shù): 8th
電源電壓: 3.14 V ~ 11 V,±3.14 V ~ 5.5 V
安裝類型: 表面貼裝
封裝/外殼: 28-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 28-SSOP
包裝: 管件
LTC1068 Series
8
1068fc
TYPICAL PERFORMANCE CHARACTERISTICS
LTC1068-25
Maximum Q vs Center Frequency
(Modes 1, 1b, 2)
LTC1068-25
Maximum Q vs Center Frequency
(Modes 2, 3)
LTC1068 Center Frequency
Variation vs Clock Frequency
LTC1068-200 Center Frequency
Variation vs Clock Frequency
LTC1068-50 Center Frequency
Variation vs Clock Frequency
LTC1068-25 Center Frequency
Variation vs Clock Frequency
CENTER FREQUENCY, fO (kHz)
0
A
B
C
TYPICAL
MAXIMUM
Q
55
50
45
40
35
30
25
20
15
10
5
0
64
128
160
1068 G07
32
96
192 224
A: VS = 3.3V, fCLK(MAX) = 1.2MHz
B: VS = 5V, fCLK(MAX) = 3.4MHz
C: VS = ±5V, fCLK(MAX) = 6.1MHz
(FOR MODE 2, R4 ≥ 10R2)
FREQUENCY, fO (kHz)
0
A
B
C
TYPICAL
MAXIMUM
Q
55
50
45
40
35
30
25
20
15
10
5
0
64
128
160
1068 G08
32
96
192 224
A: VS = 3.3V, fCLK(MAX) = 1MHz
B: VS = 5V, fCLK(MAX) = 3MHz
C: VS = ±5V, fCLK(MAX) = 5MHz
(FOR MODE 2, R4 < 10R2)
CLOCK FREQUENCY (MHz)
0.75 1.25 1.75 2.25 2.75 3.25 3.75
–0.6
CENTER
FREQUENCY
VARIATION
(%
ERROR)
–0.4
0
0.2
0.4
1.2
1068 G09
–0.2
4.25
0.6
0.8
1.0
MODE 3
MODE 1
VS = ±5V
Q = 5, REFERENCE
CENTER FREQUENCY
WITH fCLK = 0.75MHz
CLOCK FREQUENCY (MHz)
0.75 1.25 1.75 2.25 2.75 3.25 3.75
–0.25
CENTER
FREQUENCY
VARIATION
(%
ERROR)
–0.20
–0.10
–0.05
0
0.20
1068 G10
–0.15
4.25
0.05
0.10
0.15
MODE 3
MODE 1
VS = ±5V
Q = 5, REFERENCE
CENTER FREQUENCY
WITH fCLK = 0.75MHz
CLOCK FREQUENCY (MHz)
0.5
–0.2
CENTER
FREQUENCY
VARIATION
(%
ERROR)
–0.1
0
0.1
0.2
0.4
0.75
1.0
1.25
1.5
1068 G11
1.75
2.0
0.3
MODE 1
MODE 3
VS = ±5V
Q = 5, REFERENCE
CENTER FREQUENCY
WITH fCLK = 0.5MHz
CLOCK FREQUENCY (MHz)
0.5
0
BATTERY
VOLTAGE
(V)
0.3
0.8
1.3
1.8
1.0
1.5
2.0
2.5
1068 G12
3.0
3.5
MODE 1
MODE 3
VS = ±5V
Q = 5, REFERENCE
CENTER FREQUENCY
WITH fCLK = 0.5MHz
LTC1068/LTC1068-200
Noise vs Q
LTC1068-50 Noise vs Q
LTC1068-25 Noise vs Q
Q
0
NOISE
(V
RMS
)
50
100
150
200
10
20
30
5V ±5V
3.3V
40
1068 G13
250
300
5
15
25
35
Q
0
NOISE
(V
RMS
)
50
100
150
200
10
20
30
±5V
3.3V
40
1068 G14
250
300
5
15
25
35
5V
Q
0
NOISE
(V
RMS
)
50
100
150
200
10
20
30
±5V
3.3V
40
1068 G15
250
300
5
15
25
35
5V
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